/Engine/Plugins/Experimental/MeshLODToolset/Source/MeshLODToolset/Public/Graphs/GenerateStaticMeshLODProcess.h
Material Queries and Constraints
the set of Materials that were identified on the Source Asset
[TArray](API\Runtime\Core\Containers\TArray)< [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * > GetSourceBakeMaterials() const